bsteve
In which type of ML - inline or sidelock
I have gone totally to fffg in side locks and continue to use 2f in the inlines.
Remember that 100 grains 2f is a greater charge than 2 50 grain pellets. and going to 3f you should probably reduce another 10% andwork up or down from there.
A lot of people are getting better velocity and even reporting better accuracy with 3f in the inlines, but I can not say that has worked for me in my tests...